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Postural Stability clinical trials

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NCT ID: NCT03757702 Completed - Fibromyalgia Clinical Trials

Trunk Position Sense, Postural Stability and Spinal Posture in Fibromyalgia

Start date: July 10, 2018
Phase:
Study type: Observational

This study aims to investigate trunk position sense, postural stability and spine posture in fibromyalgia patients and healthy women.

NCT ID: NCT03446677 Completed - HIV Clinical Trials

Postural Stability Deficiencies in Asymptomatic Individuals With HIV

Start date: July 22, 2014
Phase: N/A
Study type: Interventional

Persons with HIV can present vestibular system impairments, affecting postural stability. There is scarce literature related to the contribution of the visual and somatosensory systems in maintaining postural stability in persons with HIV. The purpose of this study is to describe the sensory systems used to maintain postural stability and how the sources of sensory information contributes to postural stability in asymptomatic persons with HIV. Postural stability was measured in 20 asymptomatic persons with HIV (11 male, 9 female, aged 43 ± 8 years). Static postural stability was evaluated during eight conditions that perturbed the visual, somatosensory and vestibular inputs. A paired-samples t-test was conducted to compare center of pressure (COP), antero-posterior displacement (APD) and right-left displacement (RLD) on stable and unstable surface and to characterize each balance sensory system. There was a significant difference in the COP and APD of eyes open condition compared to the remaining conditions on stable surface. Furthermore, there was a significant difference in the COP, APD and RLD for the eyes open on a foam surface compared to the remaining conditions on an unstable surface. Postural instability can be detected in asymptomatic persons with HIV under challenging conditions, previous to the evident appearance of balance impairments.

NCT ID: NCT02392962 Completed - Postural Stability Clinical Trials

Dynamic and Static Stretching on Postural Stability, Reaction Time and Countermovement Jump of Sprinters

Start date: December 2014
Phase: N/A
Study type: Interventional

All the athletes should perform a warm-up consisting of five minutes of jogging and static stretching (Experimental Group 1) or dynamic stretching (Experimental Group 2). Before the beginning of the study and right after performing the stretching protocol, the investigators evaluated the unipedal postural stability, the acustic reaction time, the joint position sense of the knee and the countermovement jump of the athletes.

NCT ID: NCT00060593 Completed - Healthy Clinical Trials

MRI Study of Self-Perception of Postural Stability

Start date: May 2003
Phase: N/A
Study type: Observational

This study will use functional magnetic resonance imaging (MRI) to examine loss of balance in the elderly. Falls due to balance problems are a major health issue in older people, often resulting in bone fractures and other bodily injuries, and in functional decline. Risk factors for falling in the elderly include some standing positions in which older people usually experience balance problems, such as leaning forwards or backwards. Functional MRI records brain function while the subject performs a task, such as moving a limb or speaking, and detects changes in the brain regions involved in those tasks. This study will look at different brain areas to see which areas might control what people see around them while they are standing. Healthy normal volunteers between 20 and 90 years of age may be eligible for this study. Candidates must be in good health, have no difficulties in performing activities of daily living, and be able to walk for at least 400 meters (1/4 mile). They will be screened with a medical history and physical examination. Participants will undergo functional MRI while performing visual recognition tasks in two experiments, described below. For the MRI procedure, the subject lies in the MRI scanner, a narrow metal cylinder containing a strong magnet, for 20 minutes to 3 hours, with most scans lasting between 45 and 90 minutes. The experiments are as follows: Experiment 1 During MRI scanning, the subject watches computer-generated movies of a person leaning forwards and backwards. When the subject recognizes an unstable body position in the movements, he or she presses a computer mouse. Experiment 2 During MRI scanning, the subject watches still pictures of people leaning in stable and unstable postures and presses a button as soon as he or she recognizes that the posture is unstable.